The Apache Ant team currently maintains two lines of
development. The 1.9.x releases require Java5 at runtime and
1.10.x requires Java8 at runtime. Both lines are based off of
Ant 1.9.7 and the 1.9.x releases are mostly bug fix releases
while additional new features are developed for 1.10.x.

The latest releases are 1.9.13 and 1.10.5 and 1.10.5 contains
a superset of 1.9.13 - with the exception of a few tasks and
features that no longer work with Java8 anyway (like the apt
task).

The full release notes of the latest releases are below.

Release Notes of Apache Ant 1.9.13

Changes from Ant 1.9.12 TO Ant 1.9.13
=====================================
Fixed bugs:
-----------
* Fixes a regression in the "get" task where redirects
from a HTTP resource to a HTTPS resource started throwing
an exception.
Bugzilla Report 62499
* the new allowFilesToEscapeDest didn't work when set to false and
archive entries contained relative paths with so many ".."
segnments that the resulting path would go beyond the file system
root.
Bugzilla Report 62502

Release Notes of Apache Ant 1.10.5

Changes from Ant 1.10.4 TO Ant 1.10.5
=====================================
Fixed bugs:
-----------
* Fixes a regression in the "get" task where redirects
from a HTTP resource to a HTTPS resource started throwing
an exception.
Bugzilla Report 62499
* the new allowFilesToEscapeDest didn't work when set to false and
archive entries contained relative paths with so many ".."
segnments that the resulting path would go beyond the file system
root.
Bugzilla Report 62502
Other changes:
--------------
* Java task now accepts a "sourcefile" attribute to allow single file
source program execution, a feature that is introduced in Java 11.